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vectorize mixing loop of fluid_rvoice_buffers_mix()

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This commit is contained in:
derselbst 2018-04-26 17:31:05 +02:00
parent f332f32a7c
commit 89015494cb
1 changed files with 15 additions and 12 deletions
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27
src/rvoice/fluid_rvoice_mixer.c
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@ -253,29 +253,31 @@ get_dest_buf(fluid_rvoice_buffers_t* buffers, int index,
*
* @param buffers Destination buffer(s)
* @param dsp_buf Mono sample source
* @param samplecount Number of samples to process (no FLUID_BUFSIZE restriction)
* @param start_block Block to start mixing at
* @param sample_count number of samples to mix following \c start_block
* @param dest_bufs Array of buffers to mixdown to
* @param dest_bufcount Length of dest_bufs
*/
static void
fluid_rvoice_buffers_mix(fluid_rvoice_buffers_t* buffers,
fluid_real_t *FLUID_RESTRICT dsp_buf, int start, int samplecount,
fluid_real_t *FLUID_RESTRICT dsp_buf,
int start_block, int sample_count,
fluid_real_t** dest_bufs, int dest_bufcount)
{
int bufcount = buffers->count;
int i, dsp_i;
if (!samplecount || !bufcount || !dest_bufcount)
if (sample_count <= 0 || dest_bufcount <= 0)
return;
for (i=0; i < bufcount; i++) {
fluid_real_t* buf = get_dest_buf(buffers, i, dest_bufs, dest_bufcount);
fluid_real_t *FLUID_RESTRICT buf = get_dest_buf(buffers, i, dest_bufs, dest_bufcount);
fluid_real_t amp = buffers->bufs[i].amp;
if (buf == NULL || amp == 0.0f)
continue;
#pragma omp simd aligned(dsp_buf:FLUID_DEFAULT_ALIGNMENT)
#pragma vector aligned(dsp_buf)
for (dsp_i = start; dsp_i < samplecount; dsp_i++)
for (dsp_i = (start_block * FLUID_BUFSIZE); dsp_i < sample_count; dsp_i++)
{
buf[dsp_i] += amp * dsp_buf[dsp_i];
}
@ -293,24 +295,25 @@ fluid_mixer_buffers_render_one(fluid_mixer_buffers_t* buffers,
unsigned int dest_bufcount)
{
int blockcount = buffers->mixer->current_blockcount;
int i, result = 0, start = 0;
int i, total_samples = 0, start_block = 0;
fluid_real_t* local_buf = fluid_align_ptr(buffers->local_buf, FLUID_DEFAULT_ALIGNMENT);
for (i=0; i < blockcount; i++) {
int s = fluid_rvoice_write(rvoice, &local_buf[FLUID_BUFSIZE*i]);
if (s == -1) {
start += FLUID_BUFSIZE;
start_block += s;
s = FLUID_BUFSIZE;
}
result += s;
total_samples += s;
if (s < FLUID_BUFSIZE) {
break;
break;
}
}
fluid_rvoice_buffers_mix(&rvoice->buffers, local_buf, start, result-start, dest_bufs, dest_bufcount);
fluid_rvoice_buffers_mix(&rvoice->buffers, local_buf, -start_block, total_samples-((-start_block)*FLUID_BUFSIZE), dest_bufs, dest_bufcount);
if (result < buffers->mixer->current_blockcount * FLUID_BUFSIZE) {
if (total_samples < buffers->mixer->current_blockcount * FLUID_BUFSIZE) {
fluid_finish_rvoice(buffers, rvoice);
}
}